scholarly journals Great span continuous rigid frame bridge piers earthquake response analysis

2015 ◽  
Author(s):  
Xing-Shun Liu ◽  
Jian-Tao Peng ◽  
Xiao-Jun Ning
Keyword(s):  
Bridge Piers ◽  
Earthquake Response ◽  
Response Analysis ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Earthquake Response Analysis ◽  
Rigid Frame Bridge

The Seismic Response Analysis of Continuous Rigid-Frame Bridge - Energy Method

2011 ◽  
Vol 378-379 ◽  
pp. 251-255
Author(s):  
Qi Cai Yu ◽  
Ai Rong Liu ◽  
Ren Xiong ◽  
Hui Jun Yu
Keyword(s):  
Finite Element ◽  
Energy Method ◽  
Reinforcement Ratio ◽  
Degree Of Freedom ◽  
Response Analysis ◽  
Energy Response ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Rigid Frame Bridge ◽  
The Impact

A 3D Finite Element model of a continuous rigid-frame bridge is constructed by the Midas/Civil bridge finite element analysis program in this paper, where fiber elements and plastic hinges are used for bridge piers. The lump mass method is used to simplify the infinite-degree-of-freedom continuous rigid-frame bridge into a multi-degree of freedom model. The energy solution of continuous rigid-frame bridge is given, and the time-history analysis of the bridge is applied. In addition, the energy response of continuous rigid-frame bridge with different pier height and reinforcement ratio are given based on the energy method, revealing the impact of pier height and reinforcement ratio on the displacement and energy response of continuous rigid-frame bridge.

Static and Dynamic Behavior of the High-Pier and Long-Span Continuous Rigid Frame Bridge

2013 ◽  
Vol 639-640 ◽  
pp. 474-480 ◽  
Author(s):  
Jian Xin Liu ◽  
Ying Wang ◽  
Mei Chun Zhu ◽  
Zhi Hong Zhang ◽  
Xin Hua Zhang ◽  
...  
Keyword(s):  
Time History ◽  
Response Analysis ◽  
Bridge Structure ◽  
The Finite Element Method ◽  
Long Span ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Internal Forces ◽  
High Pier ◽  
Rigid Frame Bridge

A structure model of three-span continuous rigid frame bridge was constructed based on the finite element method. Firstly, the static performances were obtained. Secondly, the modal analysis was performed to get the natural frequencies and periods. The dynamic characteristics of the bridge structure were summarized, and some improvement guidelines are suggested to overcome the shortcoming for the bridge structure. Then, seismic response analysis was carried out based on the EL-Centro wave. The input excitations adopted the combination of vertical wave plus longitudinal wave, or vertical wave plus lateral wave, or the combination of three directions. Based on the three excitation cases, some useful results were obtained, which include internal forces, displacements, accelerations time-history curves of the critical sections for the bridge structure. And some comments about the time-history curves are given. At last, some helpful conclusions are drawn based on the calculation and analysis above. The calculation methods and results in this paper can provide some referenced information for the engineering design.

Seismic Research of Continuous Rigid Frame Bridge under Cantilever Construction Method

2011 ◽  
Vol 368-373 ◽  
pp. 673-677 ◽  
Author(s):  
Xian Yuan Tang ◽  
Qiang Hu ◽  
Yong He Yu
Keyword(s):  
Response Spectrum ◽  
Time History ◽  
Highway Bridges ◽  
Element Model ◽  
Construction Method ◽  
Response Analysis ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Cantilever Construction ◽  
Rigid Frame Bridge

To research the effect of earthquakes of different magnitudes on continuous rigid frame bridge under cantilever construction method, combined with the newly promulgated seismic design rules of highway bridges in China, finite element model has been built by Midas software by using the response spectrum method and dynamic time history analysis method to analyze cantilever construction method of the various stages of seismic response analysis. The results indicate that the bending moments of root segments of cantilever beams and the bottom sections of piers change greatly. So it should be attached importance to in design.

Dynamic Buffeting Response Analysis of High Pier and Long Span Continuous Rigid Frame Bridge with Stochastic Wind Field

2012 ◽  
Vol 538-541 ◽  
pp. 2531-2535
Author(s):  
Tian Zhi Hao ◽  
Xiao Li Xie ◽  
Tian Jia Hao
Keyword(s):  
Wind Field ◽  
Time History ◽  
Response Analysis ◽  
Force Model ◽  
Buffeting Response ◽  
Long Span ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
High Pier ◽  
Rigid Frame Bridge

The fluctuating wind field is simulated for digital by using the stationary Gauss processes, which Kaimal spectrum and Panofsky spectrum is used to the simulation of wind target spectrum with different direction and speed. According to Davenport quasi-steady buffeting force model formula, the time-history of wind velocity is converted to Buffeting force time history, which are applied to the Structure model node, combined with ANSYS for long-span continuous rigid frame bridge buffeting response analysis dynamic simulation.Taking a high pier and long span continuous rigid frame bridge as an example, analyzes dynamic buffeting response of the bridge under the action of the stochastic wind field, which as the guidance of high pier and long span continuous rigid frame bridge design work, practice has proved that the method is simple, reliable, also can be a way that dynamic analysis of buffeting response of large span bridge or tower structure under the action of stochastic wind field.

Finite Element Analysis about Dynamic Characteristics of the High-Pier and Long-Span Continuous Rigid Frame Bridge

2011 ◽  
Vol 243-249 ◽  
pp. 1876-1880
Author(s):  
Ying Wang ◽  
Jian Xin Liu ◽  
Chong Wang
Keyword(s):  
Finite Element ◽  
Dynamic Characteristics ◽  
Time History ◽  
Response Analysis ◽  
Bridge Structure ◽  
Element Analysis ◽  
Long Span ◽  
Continuous Rigid Frame Bridge ◽  
Rigid Frame ◽  
Rigid Frame Bridge

A structure model of three-span continuous rigid frame bridge was constructed based on the finite element method. At first, the modal analysis was performed to get the natural frequencies and periods. The dynamic characteristics of the bridge structure were summarized, and some improvement measures are suggested to overcome the shortcoming for the bridge structure. Then, seismic response analysis was carried out based on the EL-Centro wave. The input excitations adopted the combination of vertical wave plus longitudinal wave, or vertical wave plus lateral wave. Based on the two excitation cases, some useful results were obtained, which include internal forces, displacements, accelerations time-history curves of the critical sections for the bridge structure. And some commentates about the time-history curves are given. At last, some helpful conclusions are drawn based on the calculation and analysis above. The calculation methods and results in this paper can provide some referenced information for the engineering design.

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